2004 Lexus IS 300 Owners Manual - Page 290

03 07.09 DRIVING TIPS See page 335 for recommended viscosity. Leaving a heavy summer oil in your vehicle during winter months may cause harder starting. If you are not sure about which oil to use, call your Lexus dealer - they will be pleased to help. Check the electronic ignition connections or obvious damage. Keep the door locks from freezing. Squirt lock de-icer or glycerine into the locks to keep them from freezing. Use a washer fluid containing an antifreeze solution. This product is available at your Lexus dealer and most auto parts stores. Follow the manufacturer's directions for how much to mix with water. system for loose Ice and snow built up under your fenders can make steering difficult. During bad winter driving, stop and check under the fenders occasionally. Depending on where you are driving, we recommend you carry some emergency equipment. Some of the things you might put in the vehicle are tire chains, window scraper, bag of sand or salt, flares, small shovel, jumper cables, etc. NOTICE Do not use engine antifreeze or any other substitute because it may damage your vehicle's paint. Do not use your parking brake when there is a possibility it could freeze. When parking, put the transmission into "P" (automatic) or into first or reverse (manual) and block the front wheels. Do not use the parking brake, or snow or water accumulated in and around the parking brake mechanism may freeze the parking brake, making it hard to release. Keep ice and snow from accumulating under the fenders. 271